Device for removing pneumatic tires from their rims



Julie 29 1926.

J. B. SMITH DEVICE FOR REMOVING PNEUMATIC TIRES FROM THEIR RIMS FiledSept. 2. 1921 J 5' S/Wii/Z INVENTOR.

A TTORNEY.

Patented June 29, 1925,.

Units stares 1,se0,212 aren't QFFIQE,

JOSEPH B. SMITH, OF HAVANA, ILLINOIS, ASSIGNOR TO WEAVER MANUFACTURINGCOME'ANY, OF SPRINGFIELD, ILLINOIS, A CORFORATION OF ILLINOIS.

DEVICE FOR REMOVING PNEUMATIC TIRES FROM THEIR RIMIS/ Application filedSeptember This invention relates to a device for re moving pneumatictires from their runs.

The main object of the invention is that of providing a simple yeteffective tool by which tires which quite often become frozen to thewheel-rim may be very easily removed without loss of time usuallynecessary with the ordinary hand tools, or the labor incident to oldermethods.

Another object is the provision of a structure of such a form as tocause the tire'engaging portion thereof, in use, to follow around therim from a central point in con tact with the tire so that the lattermay be quickly forced from said rim.

Besides the above objects the invention relates to certain details ofconstruction to be pointed out herein and form the subject of certain ofthe claims.

In the appended drawing, forming part hereof,

Figure 1 is a sectional elevation of-my invention showing a wheel-rimand tire in connection therewith.

Figure 2 is a fragmentary plan of the same produced on a larger scale.

Figure 3 is a transverse section of parts shown in the first twofigures.

Figure 4 shows part of a tire and rim in perspective; and a part of myinvention in connection therewith; and,

Figure 5 is a transverse section of a rim, tire and part of theinvention.

My invention has particular reference to wheel-rims of the quickdetachable form wherein after removing certain parts of the rim astraight tire portion is exposed from which the tire is to be removed bypushing it therefrom.

Although it would seem to be an easy operation to thus remove a tire, asa matter of fact even after a new tire has been placed upon a new rim itis difficult to remove by reason of the considerable friction betweenthese snugly fitting portions. But when the tire has long been on therim and a slight corrosion or rusting of the latter has taken placethelabor of removal is of no little moment. And it is by reason of thisfact that I have designed an apparatus to make the removal comparativelyeasy, and {yery quick.

In the drawing, 1 is the wheel-rim, lflthe flange thereof, and 2 the themounted on said am. The rim s wan ed 99 a 2, 1921. Serial No. 497,877.

support either by placing the wheel carrying it upon a suitablestandard, or by placing the rim, when removed from said wheel, upon asuitable clamp, the last named method being illustrated herein as anexample. That is to say, 3 is a standard and 4 represents a series ofshoes each being carried by one or more thread-bars 5, each of which atone end is threaded into a socket 6 of a head'7 as part of the standard3, its other end engaging one of the shoes'in any such manner that uponturning'the said bars the shoes will be moved against the rim 1 to clampit firmly. In the present instance,

" merely as an illustration, the thread-bars have ball ends 8 to'engagethe shoes, being held by an inside socket plate 9, it being un derstoodthat I may use any otherform of structure by which the rim may besupport- Extending from the head 7 is an upstandmg portion 10 to receivea hook 11- of a threaded rod 12. Opposite said rod 12 is a secondthreaded rod 13, the two being con nected by a threaded sleeve 1 actingas a turn-buckle by which the rods may be drawn toward one another, orseparated, as desired. The free end of the rod 13 carries a clipcomposed of two companion members 15 clamped thereto, said membersreceiving between them, slidably, a rod 16 having a suitable handle 17at one end and an arm 18 at the other. The handle is preferably of aT-form as shown while the said arm 18 is preferably flat as in Figured.

The member 10 is centrally located with respect to the rim and to usethe device the hook 11 is engaged therewith as shown whereupon theturn-buckle may be operated to draw the clip 15 up in close proximity tothe rim, Figures 4 and 5, and at the'same time, or previous to suchadjustment, as may be found desirable to the user,-the arm 18 isinserted between the tire 2 and flange 1 of the rim 1 as shown inseveral of the figures.

Now, by rocking the rod 16 by means of its handle 17 the heel of the armbearing against the flange 1 as a fulcrum, the tire may be movedlaterally uponsaid rim by forcing the arm upon it, the handle provid inggreat leverage for the purpose. After each rocking movement of th "rodand its arm for the above purpose the hole structure is swung about thememb 10 in a stepby-step manner applying pressure at each the flanged"-but in the other figures the operative positions are'inade clear. Theadjustability of thesaid rods admits of adapt-s ing the device to a rimof any diameter.

Changes may be made throughout the device Without de mrtin from theintent of .the invention; p

In insertingthemarnror shoe .-l8,b etween the-trim and the tire,if-desired,the engage ment or contact of-the atrm-with-themimmaylssheused as a fulernmtor swinging the mem- & her 16 downwardly. aroundthe pivotal ,eon- I .nection of the lip ,with the rod .13, thus gaining;great: power and leverage for l-orei1 1g: the parti 118 7 fully betweenthe rim l and 021211 ti whe eupon t rning of e memb f j l ids sha 011:separates tl 1e parts v in eihtating ,the ,de

i :18, as it. :is 1 mo e t-a ui d.. t e ian, loose monnting of} thetire; i ;,I.- claim: 7 i I p 1. Inlan applianee ofgthe charaeterdescribed, the combination ofthe. arm having means at its innerendzconstrueted to per- .gmitjthe arm ito be mountech radiallyot atvehiele Wheel vr i n and tobe. swungaround 1:30 the axis of the latterin a plane pa-rallel to the rim a support arried by said arni,

a shaft .roeka bly, mounted ;in said support and adapted tobeinsertedbet-Ween the rim and thetirethereon and to ,free the tire fromthe run by its oscillatory movement during its travel; aroundvthe rim.

2. In an appliance of the character described, the combination of an.expansible and contraotable arm having afsingleloop at its inner endconstructed to per nit the arm to he;mounted radiallv ofawyehiole 1Wheel rnn and tobe swung around theaxis of the latter inaplane parallel*to thatof herim a si pp l ing d onsa r fi men ali y b yo ith arflimn trslla reeks-b edii sei isnpp tanded ptedt etiir a o ax a;'liand e:att-iQnt t end 1 Telite t=.i ss s llatton, and

ubs nt l y- 1 elonga ;-:Sl14 l-. ri id y i mo e o he inn lendi f said: sa trwi s o g d mensionerns ni ttt-h --sha and adapted sb x n t edbetween hewri a d t ti e therepnaan l n i irthe tire z z om t e m by zls t scl at yitm iieme dur ng ts. progressive travel large-1nd the rim. p

, In. testimony whereof laflizg my signature.

:JOS-EPHB, SMI H-

